There were 38 games longer than 100 moves, the
longest was 217 moves (Game 112, Komodo - Leela, draw).

Time per game (hours)

Median= 2:59
Average= 2:51

Openings

There were 16-ply book openings in this stage chosen by Cato. The first letter of the ECO codes was
distributed as follows:

The
engines had almost no freedom to choose the opening variant. Indeed, all of the game pairs repeated the same ECO code twice, and repeated the same opening variant.

Reverse pairs, wins

Reverse pairs, same moves

Pairs of reverse games diverged very quickly, 40.5% diverged
immediately
out of book, 75% of the pairs diverged at most after 1 move. The
longest repeated sequence was 11 plys (Komodo - Houdini,
games 134 and 162, Sicilian Kan variation, two draws).